Austenitic stainless steel compared with carbon steel, has the following characteristics:

1) the high rate of electric negative is about 5 times of that of carbon steel.

2) the coefficient of linear expansion is 40% larger than that of carbon steel, and the coefficient of linear expansion increases correspondingly as the temperature increases.

3) low thermal conductivity, about 1/3 of carbon steel.

Mechanical properties of stainless steel

Austenitic stainless steels are similar to most other metal materials, and their tensile strength, yield strength and hardness increase with decreasing temperature, while plasticity decreases with decreasing temperature. Its tensile strength increases at a temperature range of 15~80 degrees C, which is even. More importantly, as the temperature decreases, the impact toughness decreases slowly, and there is no brittle transition temperature. Therefore, stainless steel can maintain sufficient plasticity and toughness at low temperatures.